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137P/Shoemaker-Levy 2
Classification: Jupiter-family Comet          SPK-ID: 1000126
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457340.5 (2015-Nov-14.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5720657847871379 8.2316e-08  
a 4.517602674008332 8.3575e-08 au
q 1.933236754945283 4.0306e-07 au
i 4.850436602996498 6.2167e-06 deg
node 233.0731329563373 0.0001312 deg
peri 140.9924690660106 0.00012947 deg
M 244.4090278877736 3.958e-06 deg
tp 2458466.612787038521
(2018-Dec-14.11278704)
6.165e-05 TDB
period 3507.199532332569
9.60
9.7324e-05
2.665e-07
d
yr
n .1026459990887861 2.8484e-09 deg/d
Q 7.101968593071381 1.3139e-07 au
  Orbit Determination Parameters
   # obs. used (total)      1193  
   data-arc span      11171 days (30.58 yr)  
   first obs. used      1990-09-16  
   last obs. used      2021-04-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42436  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-02 23:42:59  

Additional Information
 Earth MOID = .936374 au 
 Jupiter MOID = .0778112 au 
 T_jup = 2.675 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 6.77595961064615E-15 -3.314475667358177E-14 -3.96085370074E-12 3.267469685805932E-14 -4.777259921509628E-13 -4.707474071392527E-14
q -3.314475667358177E-14 1.624600365238671E-13 1.977644993885859E-11 -3.73246706458599E-13 2.652497418608303E-12 2.297064752196062E-13
tp -3.96085370074E-12 1.977644993885859E-11 3.80069695166569E-9 6.110549296167667E-10 1.861024573353631E-11 3.704313658110251E-11
node 3.267469685805932E-14 -3.73246706458599E-13 6.110549296167667E-10 1.721326218858081E-8 -1.691347305055464E-8 1.060606079898264E-11
peri -4.777259921509628E-13 2.652497418608303E-12 1.861024573353631E-11 -1.691347305055464E-8 1.676266827488007E-8 -4.804798883325309E-12
i -4.707474071392527E-14 2.297064752196062E-13 3.704313658110251E-11 1.060606079898264E-11 -4.804798883325309E-12 3.864744272851941E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 15.4   0.5 41 2 parameter fit from 583 observations, autocmod 2.9c
comet total magnitude slope K1 4.5   n/a 41 autocmod 2.9c
diameter diameter 5.8 km n/a DASTCOM value unverified
rotation period rot_per 7.7 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Kokotankekova, R.; Snodgrass, C.; Lacerda, P.; Green S.F.; et al. (2017) Mon. Not. Royal Ast. Soc. 471, 2974-3007.]

137P/Shoemaker-Levy 2          Discovered 1990-Oct-25 by Shoemaker, Carolyn S. at Palomar Mountain Observatory, California
discovered on plate/photo taken on discovery date as well as 11/13,15
Reference: comet.disLast Updated: 2006-10-18

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1909-Sep-14 18:29 00:01 Jupiter 1.48834459697055 1.48834237031801 1.48834682362325 5.00880983754822 4.89387049912901 2418564.269986534 1.02762478353341 138.648514798786 103.656490770385 -68.2510687733094 1556614.55551426 T 41 CATAB v2.0g-lin.ifort 2021-May-02 23:43:02 2021-May-02 23:43
1923-Jul-23 07:41 00:01 Jupiter 1.08406116804638 1.08405669096686 1.08406564512572 9.5137228293849 9.43123735746646 2423623.820060573 1.47653906826851 222.093251707153 153.946150776451 -0.316056450242726 564784.011398754 T 41 CATAB v2.0g-lin.ifort 2021-May-02 23:43:02 2021-May-02 23:43
1957-Jun-10 05:24 < 00:01 Jupiter 1.49476742613393 1.49476546717412 1.49476938509375 5.14348950786548 5.03211362419428 2435999.725313281 0.636682257788257 150.784960611372 95.5135837234165 83.8138667477694 1740174.47743495 T 41 CATAB v2.0g-lin.ifort 2021-May-02 23:43:02 2021-May-02 23:43
1992-Jun-23 08:04 < 00:01 Jupiter 1.83896556264955 1.83896337150412 1.83896775379509 11.2260267162214 11.1849220516081 2448796.835810863 0.698837701775413 110.757304151327 79.6127340079556 14.9911810974332 1840448.15287687 T 41 CATAB v2.0g-lin.ifort 2021-May-02 23:43:02 2021-May-02 23:43
2006-Apr-17 08:12 00:02 Jupiter 1.17703195424888 1.17702855717425 1.17703535132399 5.06699602192168 4.92292567200659 2453842.841626069 2.37567444132993 196.458695636784 152.223739740608 54.980600302123 946698.842325046 T 41 CATAB v2.0g-lin.ifort 2021-May-02 23:43:02 2021-May-02 23:43
2052-Nov-23 00:23 00:02 Jupiter 1.67167434342283 1.67167339218733 1.67167529466175 5.18204742377475 5.08332895878131 2470864.515745236 1.56152604084433 187.119118233105 34.1342866306187 79.9506163091534 3728247.48153661 T 41 CATAB v2.0g-lin.ifort 2021-May-02 23:43:02 2021-May-02 23:43
2098-Dec-06 21:15 00:01 Jupiter 1.14804758257349 1.14804423365808 1.14805093149158 5.00004366359722 4.85024214078998 2487679.385665825 1.0427267530596 207.469219955485 116.328962703509 -46.0620580170935 1197664.81935696 T 41 CATAB v2.0g-lin.ifort 2021-May-02 23:43:02 2021-May-02 23:43
2113-Feb-02 04:08 00:01 Jupiter 1.1460611459887 1.1460571198471 1.14606517213029 9.63199498641339 9.55495588731428 2492849.672035807 1.0463823199234 200.829176091246 136.10632607951 7.10124053861949 697678.528386789 T 41 CATAB v2.0g-lin.ifort 2021-May-02 23:43:02 2021-May-02 23:43
2147-Nov-23 04:02 00:03 Jupiter 1.45920305383664 1.45920064278535 1.45920546489008 5.16913212571208 5.05558981929004 2505561.668392407 3.22867634457004 202.947252619012 99.0053264452555 67.9700198641383 1654730.6322296 T 41 CATAB v2.0g-lin.ifort 2021-May-02 23:43:02 2021-May-02 23:43
2181-Oct-11 18:13 < 00:01 Jupiter 0.884754485747176 0.884747306624123 0.884761664914789 8.32736904301482 8.21159965168956 2517938.258729047 0.413619969188749 485.448564843502 97.1577648643463 44.1981127009423 827890.709413049 T 41 CATAB v2.0g-lin.ifort 2021-May-02 23:43:02 2021-May-02 23:43
2196-Feb-21 22:18 00:02 Jupiter 1.00409435537388 1.00409049421111 1.00409821653671 5.08142611422125 4.9126117362997 2523184.428954671 1.94677313834129 193.633933022626 170.634789795838 -9.25930423536728 820853.207083008 T 41 CATAB v2.0g-lin.ifort 2021-May-02 23:43:02 2021-May-02 23:43

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1999.7   137P/1998 K6       
 1990.1   137P/1990 UL3   1990 XVI   1990p 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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